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<a href="pdo__entry_8c.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="comment">/******************************************************************************</span></div><div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment"> *  $Id: pdo_entry.c,v bc2d4bf9cbe5 2012/09/06 18:22:24 fp $</span></div><div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment"> *  Copyright (C) 2006-2008  Florian Pose, Ingenieurgemeinschaft IgH</span></div><div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="comment"> *  This file is part of the IgH EtherCAT Master.</span></div><div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="comment"> *  The IgH EtherCAT Master is free software; you can redistribute it and/or</span></div><div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="comment"> *  modify it under the terms of the GNU General Public License version 2, as</span></div><div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="comment"> *  published by the Free Software Foundation.</span></div><div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="comment"> *  The IgH EtherCAT Master is distributed in the hope that it will be useful,</span></div><div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="comment"> *  but WITHOUT ANY WARRANTY; without even the implied warranty of</span></div><div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="comment"> *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General</span></div><div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;<span class="comment"> *  Public License for more details.</span></div><div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span class="comment"> *  You should have received a copy of the GNU General Public License along</span></div><div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;<span class="comment"> *  with the IgH EtherCAT Master; if not, write to the Free Software</span></div><div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;<span class="comment"> *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA</span></div><div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;<span class="comment"> *  ---</span></div><div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;<span class="comment"> *  The license mentioned above concerns the source code only. Using the</span></div><div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;<span class="comment"> *  EtherCAT technology and brand is only permitted in compliance with the</span></div><div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;<span class="comment"> *  industrial property and similar rights of Beckhoff Automation GmbH.</span></div><div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;<span class="comment"> *****************************************************************************/</span></div><div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;</div><div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;<span class="comment">/*****************************************************************************/</span></div><div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;</div><div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;<span class="preprocessor">#include &lt;linux/slab.h&gt;</span></div><div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;</div><div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="pdo__entry_8h.html">pdo_entry.h</a>&quot;</span></div><div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;</div><div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;<span class="comment">/*****************************************************************************/</span></div><div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;</div><div class="line"><a name="l00045"></a><span class="lineno"><a class="line" href="pdo__entry_8h.html#a535f77bcfcff9801c4e15a0b80dc59f0">   45</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="pdo__entry_8c.html#a9741671e14eefed0a1fe5a27f7465e91">ec_pdo_entry_init</a>(</div><div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;        <a class="code" href="structec__pdo__entry__t.html">ec_pdo_entry_t</a> *entry </div><div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;        )</div><div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;{</div><div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;    entry-&gt;<a class="code" href="structec__pdo__entry__t.html#ac3ccd6c6e8f8dfa934737dd18f456ee5">name</a> = NULL;</div><div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;}</div><div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;</div><div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;<span class="comment">/*****************************************************************************/</span></div><div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;</div><div class="line"><a name="l00059"></a><span class="lineno"><a class="line" href="pdo__entry_8h.html#af4c97c5f27f8d42d3dd75a170ff1e2ff">   59</a></span>&#160;<span class="keywordtype">int</span> <a class="code" href="pdo__entry_8c.html#a9c1116bdef51c753bdcc952cfce7b2c4">ec_pdo_entry_init_copy</a>(</div><div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;        <a class="code" href="structec__pdo__entry__t.html">ec_pdo_entry_t</a> *entry, </div><div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;        <span class="keyword">const</span> <a class="code" href="structec__pdo__entry__t.html">ec_pdo_entry_t</a> *other </div><div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;        )</div><div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;{</div><div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;    entry-&gt;<a class="code" href="structec__pdo__entry__t.html#aede0b110f1a6f0e0df05081c85b14bf0">index</a> = other-&gt;<a class="code" href="structec__pdo__entry__t.html#aede0b110f1a6f0e0df05081c85b14bf0">index</a>;</div><div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;    entry-&gt;<a class="code" href="structec__pdo__entry__t.html#a959b16d415fbbb08a4997d858465a3be">subindex</a> = other-&gt;<a class="code" href="structec__pdo__entry__t.html#a959b16d415fbbb08a4997d858465a3be">subindex</a>;</div><div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;    entry-&gt;<a class="code" href="structec__pdo__entry__t.html#ac3ccd6c6e8f8dfa934737dd18f456ee5">name</a> = NULL;</div><div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;    entry-&gt;<a class="code" href="structec__pdo__entry__t.html#a589e58c4f0eb47d8916a3da125d09176">bit_length</a> = other-&gt;<a class="code" href="structec__pdo__entry__t.html#a589e58c4f0eb47d8916a3da125d09176">bit_length</a>;</div><div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;</div><div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="pdo__entry_8c.html#a8592592175cfee8e0e8a6f8c2a034ca3">ec_pdo_entry_set_name</a>(entry, other-&gt;<a class="code" href="structec__pdo__entry__t.html#ac3ccd6c6e8f8dfa934737dd18f456ee5">name</a>);</div><div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;}</div><div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;</div><div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;<span class="comment">/*****************************************************************************/</span></div><div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;</div><div class="line"><a name="l00076"></a><span class="lineno"><a class="line" href="pdo__entry_8h.html#a71dbe7740b835cb199a93485b45de1ff">   76</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="pdo__entry_8c.html#a1d66b5e82c304ff57e2e91fd4628c7fc">ec_pdo_entry_clear</a>(<a class="code" href="structec__pdo__entry__t.html">ec_pdo_entry_t</a> *entry )</div><div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;{</div><div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;    <span class="keywordflow">if</span> (entry-&gt;<a class="code" href="structec__pdo__entry__t.html#ac3ccd6c6e8f8dfa934737dd18f456ee5">name</a>)</div><div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;        kfree(entry-&gt;<a class="code" href="structec__pdo__entry__t.html#ac3ccd6c6e8f8dfa934737dd18f456ee5">name</a>);</div><div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;}</div><div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;</div><div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;<span class="comment">/*****************************************************************************/</span></div><div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;</div><div class="line"><a name="l00089"></a><span class="lineno"><a class="line" href="pdo__entry_8h.html#a019c6e57ac558253f3f549141c3c6345">   89</a></span>&#160;<span class="keywordtype">int</span> <a class="code" href="pdo__entry_8c.html#a8592592175cfee8e0e8a6f8c2a034ca3">ec_pdo_entry_set_name</a>(</div><div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;        <a class="code" href="structec__pdo__entry__t.html">ec_pdo_entry_t</a> *entry, </div><div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;        <span class="keyword">const</span> <span class="keywordtype">char</span> *name </div><div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;        )</div><div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;{</div><div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;    <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> len;</div><div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;</div><div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;    <span class="keywordflow">if</span> (entry-&gt;<a class="code" href="structec__pdo__entry__t.html#ac3ccd6c6e8f8dfa934737dd18f456ee5">name</a> &amp;&amp; name &amp;&amp; !strcmp(entry-&gt;<a class="code" href="structec__pdo__entry__t.html#ac3ccd6c6e8f8dfa934737dd18f456ee5">name</a>, name))</div><div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;        <span class="keywordflow">return</span> 0;</div><div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;</div><div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;    <span class="keywordflow">if</span> (entry-&gt;<a class="code" href="structec__pdo__entry__t.html#ac3ccd6c6e8f8dfa934737dd18f456ee5">name</a>)</div><div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;        kfree(entry-&gt;<a class="code" href="structec__pdo__entry__t.html#ac3ccd6c6e8f8dfa934737dd18f456ee5">name</a>);</div><div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;</div><div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;    <span class="keywordflow">if</span> (name &amp;&amp; (len = strlen(name))) {</div><div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;        <span class="keywordflow">if</span> (!(entry-&gt;<a class="code" href="structec__pdo__entry__t.html#ac3ccd6c6e8f8dfa934737dd18f456ee5">name</a> = (<span class="keywordtype">char</span> *) kmalloc(len + 1, GFP_KERNEL))) {</div><div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;            <a class="code" href="globals_8h.html#aed23297031f2f23bb5d005bb586790cf">EC_ERR</a>(<span class="stringliteral">&quot;Failed to allocate PDO entry name.\n&quot;</span>);</div><div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;            <span class="keywordflow">return</span> -ENOMEM;</div><div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;        }</div><div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;        memcpy(entry-&gt;<a class="code" href="structec__pdo__entry__t.html#ac3ccd6c6e8f8dfa934737dd18f456ee5">name</a>, name, len + 1);</div><div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;    } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;        entry-&gt;<a class="code" href="structec__pdo__entry__t.html#ac3ccd6c6e8f8dfa934737dd18f456ee5">name</a> = NULL;</div><div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;    }</div><div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;</div><div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;    <span class="keywordflow">return</span> 0;</div><div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;}</div><div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;</div><div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;<span class="comment">/*****************************************************************************/</span></div><div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;</div><div class="line"><a name="l00122"></a><span class="lineno"><a class="line" href="pdo__entry_8h.html#afeab288460f9c0f94d0cfe26f2d7960e">  122</a></span>&#160;<span class="keywordtype">int</span> <a class="code" href="pdo__entry_8c.html#af092b30a00f9a7437ddb74639b3fe93e">ec_pdo_entry_equal</a>(</div><div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160;        <span class="keyword">const</span> <a class="code" href="structec__pdo__entry__t.html">ec_pdo_entry_t</a> *entry1, </div><div class="line"><a name="l00124"></a><span class="lineno">  124</span>&#160;        <span class="keyword">const</span> <a class="code" href="structec__pdo__entry__t.html">ec_pdo_entry_t</a> *entry2 </div><div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160;        )</div><div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;{</div><div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160;    <span class="keywordflow">return</span> entry1-&gt;<a class="code" href="structec__pdo__entry__t.html#aede0b110f1a6f0e0df05081c85b14bf0">index</a> == entry2-&gt;<a class="code" href="structec__pdo__entry__t.html#aede0b110f1a6f0e0df05081c85b14bf0">index</a></div><div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;        &amp;&amp; entry1-&gt;<a class="code" href="structec__pdo__entry__t.html#a959b16d415fbbb08a4997d858465a3be">subindex</a> == entry2-&gt;<a class="code" href="structec__pdo__entry__t.html#a959b16d415fbbb08a4997d858465a3be">subindex</a></div><div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160;        &amp;&amp; entry1-&gt;<a class="code" href="structec__pdo__entry__t.html#a589e58c4f0eb47d8916a3da125d09176">bit_length</a> == entry2-&gt;<a class="code" href="structec__pdo__entry__t.html#a589e58c4f0eb47d8916a3da125d09176">bit_length</a>;</div><div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;}</div><div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;</div><div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160;<span class="comment">/*****************************************************************************/</span></div><div class="ttc" id="structec__pdo__entry__t_html"><div class="ttname"><a href="structec__pdo__entry__t.html">ec_pdo_entry_t</a></div><div class="ttdoc">PDO entry description. </div><div class="ttdef"><b>Definition:</b> <a href="pdo__entry_8h_source.html#l00048">pdo_entry.h:48</a></div></div>
<div class="ttc" id="structec__pdo__entry__t_html_aede0b110f1a6f0e0df05081c85b14bf0"><div class="ttname"><a href="structec__pdo__entry__t.html#aede0b110f1a6f0e0df05081c85b14bf0">ec_pdo_entry_t::index</a></div><div class="ttdeci">uint16_t index</div><div class="ttdoc">PDO entry index. </div><div class="ttdef"><b>Definition:</b> <a href="pdo__entry_8h_source.html#l00050">pdo_entry.h:50</a></div></div>
<div class="ttc" id="pdo__entry_8c_html_a1d66b5e82c304ff57e2e91fd4628c7fc"><div class="ttname"><a href="pdo__entry_8c.html#a1d66b5e82c304ff57e2e91fd4628c7fc">ec_pdo_entry_clear</a></div><div class="ttdeci">void ec_pdo_entry_clear(ec_pdo_entry_t *entry)</div><div class="ttdoc">PDO entry destructor. </div><div class="ttdef"><b>Definition:</b> <a href="pdo__entry_8c_source.html#l00076">pdo_entry.c:76</a></div></div>
<div class="ttc" id="pdo__entry_8c_html_af092b30a00f9a7437ddb74639b3fe93e"><div class="ttname"><a href="pdo__entry_8c.html#af092b30a00f9a7437ddb74639b3fe93e">ec_pdo_entry_equal</a></div><div class="ttdeci">int ec_pdo_entry_equal(const ec_pdo_entry_t *entry1, const ec_pdo_entry_t *entry2)</div><div class="ttdoc">Compares two PDO entries. </div><div class="ttdef"><b>Definition:</b> <a href="pdo__entry_8c_source.html#l00122">pdo_entry.c:122</a></div></div>
<div class="ttc" id="structec__pdo__entry__t_html_a589e58c4f0eb47d8916a3da125d09176"><div class="ttname"><a href="structec__pdo__entry__t.html#a589e58c4f0eb47d8916a3da125d09176">ec_pdo_entry_t::bit_length</a></div><div class="ttdeci">uint8_t bit_length</div><div class="ttdoc">entry length in bit </div><div class="ttdef"><b>Definition:</b> <a href="pdo__entry_8h_source.html#l00053">pdo_entry.h:53</a></div></div>
<div class="ttc" id="pdo__entry_8c_html_a9c1116bdef51c753bdcc952cfce7b2c4"><div class="ttname"><a href="pdo__entry_8c.html#a9c1116bdef51c753bdcc952cfce7b2c4">ec_pdo_entry_init_copy</a></div><div class="ttdeci">int ec_pdo_entry_init_copy(ec_pdo_entry_t *entry, const ec_pdo_entry_t *other)</div><div class="ttdoc">PDO entry copy constructor. </div><div class="ttdef"><b>Definition:</b> <a href="pdo__entry_8c_source.html#l00059">pdo_entry.c:59</a></div></div>
<div class="ttc" id="pdo__entry_8c_html_a9741671e14eefed0a1fe5a27f7465e91"><div class="ttname"><a href="pdo__entry_8c.html#a9741671e14eefed0a1fe5a27f7465e91">ec_pdo_entry_init</a></div><div class="ttdeci">void ec_pdo_entry_init(ec_pdo_entry_t *entry)</div><div class="ttdoc">PDO entry constructor. </div><div class="ttdef"><b>Definition:</b> <a href="pdo__entry_8c_source.html#l00045">pdo_entry.c:45</a></div></div>
<div class="ttc" id="pdo__entry_8h_html"><div class="ttname"><a href="pdo__entry_8h.html">pdo_entry.h</a></div><div class="ttdoc">EtherCAT Process data object structure. </div></div>
<div class="ttc" id="structec__pdo__entry__t_html_a959b16d415fbbb08a4997d858465a3be"><div class="ttname"><a href="structec__pdo__entry__t.html#a959b16d415fbbb08a4997d858465a3be">ec_pdo_entry_t::subindex</a></div><div class="ttdeci">uint8_t subindex</div><div class="ttdoc">PDO entry subindex. </div><div class="ttdef"><b>Definition:</b> <a href="pdo__entry_8h_source.html#l00051">pdo_entry.h:51</a></div></div>
<div class="ttc" id="structec__pdo__entry__t_html_ac3ccd6c6e8f8dfa934737dd18f456ee5"><div class="ttname"><a href="structec__pdo__entry__t.html#ac3ccd6c6e8f8dfa934737dd18f456ee5">ec_pdo_entry_t::name</a></div><div class="ttdeci">char * name</div><div class="ttdoc">entry name </div><div class="ttdef"><b>Definition:</b> <a href="pdo__entry_8h_source.html#l00052">pdo_entry.h:52</a></div></div>
<div class="ttc" id="globals_8h_html_aed23297031f2f23bb5d005bb586790cf"><div class="ttname"><a href="globals_8h.html#aed23297031f2f23bb5d005bb586790cf">EC_ERR</a></div><div class="ttdeci">#define EC_ERR(fmt, args...)</div><div class="ttdoc">Convenience macro for printing EtherCAT-specific errors to syslog. </div><div class="ttdef"><b>Definition:</b> <a href="globals_8h_source.html#l00227">globals.h:227</a></div></div>
<div class="ttc" id="pdo__entry_8c_html_a8592592175cfee8e0e8a6f8c2a034ca3"><div class="ttname"><a href="pdo__entry_8c.html#a8592592175cfee8e0e8a6f8c2a034ca3">ec_pdo_entry_set_name</a></div><div class="ttdeci">int ec_pdo_entry_set_name(ec_pdo_entry_t *entry, const char *name)</div><div class="ttdoc">Set PDO entry name. </div><div class="ttdef"><b>Definition:</b> <a href="pdo__entry_8c_source.html#l00089">pdo_entry.c:89</a></div></div>
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